Cc Programming And Readback Accuracy - Rigol DP831A Performance Verification Manual

RIGOL

CC Programming and Readback Accuracy

CC programming accuracy refers to the error between the current setting value of
the channel and the actual output current value when the power supply is in CC
mode; CC readback accuracy refers to the error between the actual output current
value and the readback current value when the power supply is in CC mode.
DP831A is taken as an example to test the CC programming and readback accuracy
of DP800 series in the following section.
Note: During the actual test, please select the corresponding test record form
according to the model of the DP800 power supply under test to set the
corresponding parameters, record and calculate the corresponding specifications.
Specification:
[1]
Annual Accuracy
Channel
CH1
DP831A CH2
CH3
CH1
DP832A
CH2
CH3
CH1
DP832
CH2
CH3
CH1
DP821A
CH2
DP811A
CH1
[1]
Note : The accuracy parameters are acquired via calibration under 25℃ after 1-hour warm-up.
Test Procedures:
1. Turn off DP800. Connect DP800, AC power supply, current sampling resistor (the
resistance R
M
attention to the connection method of the current sampling resistor and the
channel output terminals of DP800 as well as the connection method of the
current sampling resistor and multimeter. Here, CH1 is taken as an example and
the connection method is also applicable to CH2 and CH3. Then, connect the
power supply with PC (take the connection via USB cable as an example) via the
remote interfaces (USB, GPIB, LAN).
3-14
(25℃±5℃)± (Output Percentage+Offset)
Programming
0.2%+10mA
0.2%+5mA
0.2%+5mA
0.2%+5mA
0.2%+5mA
0.2%+5mA
0.2%+10mA
0.2%+10mA
0.2%+10mA
0.2%+10mA
0.2%+10mA
0.1%+10mA
is 0.022Ω) and multimeter according to Figure 3-1. Please pay
Chapter 3 Constant Current Tests
Readback
0.2%+10mA
0.1%+5mA
0.1%+5mA
0.15%+5mA
0.15%+5mA
0.15%+5mA
0.15%+5mA
0.15%+5mA
0.15%+5mA
0.15%+10mA
0.15%+10mA
0.1%+10mA
DP800 Performance Verification Manual